When you join the conference, you enter the general conference channel
by default.

In the general conference channel, you can hear all participants as
they speak their preferred language. When you speak, all participants
in the general conference channel can hear you.

If you press the 1 key, you enter the interpretation channel. On this
channel, people in the general conference channel can hear you but,
you can no longer hear them. Instead, you only hear what is being said
in the interpretion channel. You can return to the general conference
channel by pressing 0.

If you press 2, you enter the interpretation channel as an interpreter
and we ask that this channel only be used by people doing the
interpretation work for the meeting.